10006778 has 8 divisors (see below), whose sum is σ = 15893172. Its totient is φ = 4709056.

The previous prime is 10006757. The next prime is 10006781. The reversal of 10006778 is 87760001.

10006778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10004569 + 2209 = 3163^2 + 47^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10006778.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147125 + ... + 147192.

Almost surely, 2^10006778 is an apocalyptic number.

10006778 is a deficient number, since it is larger than the sum of its proper divisors (5886394).

10006778 is a wasteful number, since it uses less digits than its factorization.

10006778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294336.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 10006778 is about 3163.3491745301. The cubic root of 10006778 is about 215.4921338709.

Adding to 10006778 its reverse (87760001), we get a palindrome (97766779).

The spelling of 10006778 in words is "ten million, six thousand, seven hundred seventy-eight".